<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<link rel="stylesheet" href="css/bootstrap.css">
		<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no"/>
	</head>
	<body>
	<!-- 列偏移：为了让两个相邻的列元素有一定的间隔，除了设置外边距以外还可以设置偏移，.offset-设备类型 -* *代表可以偏移的列数 -->
	<div class="container">
		<div class="row">
			<div class="col-md-3 border py-5 bg-warning">col-md-3</div>
			<div class="col-md-6 offset-md-3 border py-5 bg-warning">col-md-6</div>
		</div>
	</div>
	</body>
</html>
